# Relationship history for MSHA mine 1518629

Current hierarchy: **Pauline  Honeycutt → Marsh Coal Company LLC → Elkhorn No 3**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Marsh Coal Company LLC → Elkhorn No 3; 2003-05-05 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Pauline  Honeycutt → Elkhorn No 3; 2003-05-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Pauline  Honeycutt → Marsh Coal Company LLC; 2003-05-05 to current/open; source msha-controller-operator-history